My problem with CoC and TiTS is that the art is way too exaggerated. I like CoC1 due to it being pixelated, and my imagination can do the rest of the work, but in TiTS and CoC2 the art just ruins it for me. It also seems like 80% of the girls are futas now, which isn't for me either
TBH that's my biggest issue too. I'm not interested in my character recieving, though at least in TiTS there are a lot of really well written segments. Characters like Lorelei and Anno make up for a lot of the series' failings in my book.